package com.zking.myservlet.category;

import com.zking.dao.CategoryDao;
import com.zking.entity.Category;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

//分类管理点击修改之前的查询（所有的大类  要修改的当前小类）
@WebServlet("/manage/categorySelectById")
public class CategorySelectById extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //处理请求的编码，解决中文乱码
        request.setCharacterEncoding("utf-8");
        //处理响应的编码 ，解决中文乱码
        response.setContentType("text/html;charset=utf-8");

        System.out.println("CategorySelectById===进来");

        int id = Integer.parseInt(request.getParameter("id"));
        int parentId = Integer.parseInt(request.getParameter("parentId"));
        Category category = CategoryDao.getCategoryById(id);
        List<Category> bigList = new ArrayList<>();

        if(id!=parentId){
            bigList = CategoryDao.getBigCategory();
        }else{
            bigList.add(new Category(-2, "修改大类", -2));

        }

        request.setAttribute("bigList",bigList);
        request.setAttribute("category",category);
        request.getRequestDispatcher("productClass-modify.jsp").forward(request, response);

    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        doPost(request, response);
    }
}
